123132231001 has 8 divisors (see below), whose sum is σ = 132626647944. Its totient is φ = 113641057920.

The previous prime is 123132230929. The next prime is 123132231007. The reversal of 123132231001 is 100132231321.

It can be written as a sum of positive squares in 4 ways, for example, as 21119064976 + 102013166025 = 145324^2 + 319395^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123132231001 - 2⁷ = 123132230873 is a prime.

It is a super-2 number, since 2×123132231001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123132231001.

It is not an unprimeable number, because it can be changed into a prime (123132231007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 731836 + ... + 884221.

It is an arithmetic number, because the mean of its divisors is an integer number (16578330993).

Almost surely, 2^123132231001 is an apocalyptic number.

It is an amenable number.

123132231001 is a deficient number, since it is larger than the sum of its proper divisors (9494416943).

123132231001 is a wasteful number, since it uses less digits than its factorization.

123132231001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1621931.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 123132231001 its reverse (100132231321), we get a palindrome (223264462322).

The spelling of 123132231001 in words is "one hundred twenty-three billion, one hundred thirty-two million, two hundred thirty-one thousand, one".